What APEX activity describes the operational environment including threats to national security and supports both deliberate planning an crisis action planning?

The APEX activity that describes the operational environment, including threats to national security, is the Joint Intelligence Preparation of the Operational Environment (JIPOE). JIPOE provides a systematic approach to analyze the operational environment and assess potential threats, which informs both deliberate planning and crisis action planning. This analysis helps military leaders understand the complexities of the environment and make informed decisions to achieve national security objectives.